VEHICLE BRAKING CONTROL APPARATUS

摘要

A vehicle braking control apparatus includes an obstacle detection unit to detect an obstacle ahead of a vehicle, and a distance and a relative speed of the obstacle; a time to collision calculation unit to calculate time to collision with the obstacle; an estimated distance calculation unit to calculate an estimated distance to the obstacle when the obstacle has gone out of detection; and a braking control unit to generate a braking force automatically when the time to collision is a predetermined time or less, and when the obstacle has gone out of detection while the braking force is generated, to release the braking force when the estimated distance is a predetermined threshold (<0) or less, wherein the obstacle is classified into a type depending on precision of the distance and relative speed, to set the predetermined threshold less while the precision is worse.

主权项

1. A vehicle braking control apparatus, comprising:
an obstacle detection unit configured to detect an obstacle ahead of a vehicle, and to detect a distance to the obstacle from the vehicle, and a relative speed of the obstacle with respect to the vehicle; a time to collision calculation unit configured to calculate a time to collision until the vehicle collides with the obstacle, based on the distance and the relative speed; an estimated distance calculation unit configured to calculate, when the obstacle has gone out of detection by the obstacle detection unit, an estimated distance to the obstacle from the vehicle, at least based on the distance and the relative speed before the obstacle has gone out of detection by the obstacle detection unit; and a braking control unit configured to generate a braking force of the vehicle automatically when the time to collision is less than or equal to a predetermined time, and when the obstacle has gone out of detection by the obstacle detection unit in a state where the braking force is generated, to release the state where the braking force is generated when the estimated distance is less than or equal to a predetermined threshold set less than zero, wherein the obstacle is classified into a type depending on detection precision of the distance and the relative speed by the obstacle detection unit, to set the predetermined threshold less while the detection precision is worse.